.lvyoubeijingtu{
    width: 100%;
    height: 720px;
    background-image: url("./images/lv1.jpg");
    background-size: 100% 100%;
}
.ju{
    position: absolute;
    margin-top: 50px;
    margin-left: 350px;
    width: 800px;
    height: 650px;
    background-color: #cccccc;
    opacity: 0.5;
}
.shou{
    font-size: 30px;
    text-align: center;
    color: orangered;
}
.zhu{
    margin-left: 50px;
    margin-right: 50px;
    font-size: 18px;
}